Poison ivy, poison oak and poison sumac; identifications, precautions, eradication
Edition: [Slightly rev. Dec. 1968.
Series: U.S. Dept. of Agriculture. Farmers' bulletin no. 1972; Farmers' bulletin (United States. Department of Agriculture) -- no. 1972.
Publisher: U.S. Govt. Print. Off.
Place of publication: Washington
Language: eng
Number of pages: 16